"Arrokoth: The Sweet Red 'Sugar World' in the Kuiper Belt"

Researchers have simulated the conditions on the planetesimal Arrokoth and found that its red color likely comes from a surface rich in sugars formed by cosmic ray bombardment over 1.8 billion years. This discovery, made using data from NASA's New Horizons spacecraft, suggests that similar processes on comets could have contributed to the origins of life on Earth.